Stargazy pie is a pie made with fish heads looking up out of
the crust. It does not appeal. However, the lenses of fish
eyes are clearly lenses and work well as a way of focussing an
image, and since fish heads are edible, so presumably
are fish
eyes.

So: Make a tube of laver, support it with rice starch and place
a fish eye at either end, having cored out the retina. Given
the correct focal length, you will then have sushi which can
be used as a telescope, or in pairs as field glasses.

//When are you going to learn to simply make it all out of industrial chemicals like we do in the States?// That's very unfair on American food. They actually pass the industrial chemicals through livestock and plants before feeding them to people.

Interestingly*, van Leeuwenhoek's first microscopes had a single powerful lens taken from cod.